Unpooled.copiedBuffer函数

public final class Unpooled {/*** Creates a new big-endian buffer whose content is a copy of the* specified {@code array}.  The new buffer's {@code readerIndex} and* {@code writerIndex} are {@code 0} and {@code array.length} respectively.*/public static ByteBuf copiedBuffer(byte[] array) {if (array.length == 0) {return EMPTY_BUFFER;}return wrappedBuffer(array.clone());}...   
}
复制代码

将String转为ByteBuf对象

• 方法1：

    byte[] bytes = msg.getBytes(CharsetUtil.UTF_8);out.writeBytes(Unpooled.copiedBuffer(bytes));
复制代码

• 方法2：

out.writeBytes(Unpooled.copiedBuffer(msg, CharsetUtil.UTF_8));